Publication: Continuously tunable microdroplet-laser in a microfluidic channel
Open/View Files
Date
2011
Published Version
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America (OSA)
The Harvard community has made this article openly available. Please share how this access benefits you.
Citation
Tang, Sindy K. Y., Ratmir Derda, Qimin Quan, Marko Lončar, and George M. Whitesides. 2011. “Continuously Tunable Microdroplet-Laser in a Microfluidic Channel.” Optics Express 19, no. 3: 2204-2215.
Research Data
Abstract
This paper describes the generation and optical characterization of a series of dye-doped droplet-based optical microcavities with continuously decreasing radius in a microfluidic channel. A flow-focusing nozzle generated the droplets (~21 μm in radius) using benzyl alcohol as the disperse phase and water as the continuous phase. As these drops moved down the channel, they dissolved, and their size decreased. The emission characteristics from the drops could be matched to the whispering gallery modes from spherical micro-cavities. The wavelength of emission from the drops changed from 700 to 620 nm as the radius of the drops decreased from 21 μm to 7 μm. This range of tunability in wavelengths was larger than that reported in previous work on droplet-based cavities.
Description
Other Available Sources
Keywords
Terms of Use
This article is made available under the terms and conditions applicable to Open Access Policy Articles (OAP), as set forth at Terms of Service